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Vulnerability record · CVE-2026-86185 · published 5 September 2026

CVE-2026-86185: Improper certificate validation vulnerability

Bilibili Desktop through 1.18.0 disables TLS certificate verification process-wide and executes unsigned remote JavaScript configuration without integrity checks. An attacker in an on-path network position can intercept configuration fetches, inject arbitrary JavaScript executed in the renderer with access to the privileged IPC bridge, and execute system commands or steal login credentials.

8.6 CVSS 4.0 High EPSS 0.17% · top 94.1% CWE-295 · Improper certificate validation Deferred
8.6CVSS 4.0 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
23 Sep 2026Last modified by NVD

Description

Bilibili Desktop through 1.18.0 disables TLS certificate verification process-wide and executes unsigned remote JavaScript configuration without integrity checks. An attacker in an on-path network position can intercept configuration fetches, inject arbitrary JavaScript executed in the renderer with access to the privileged IPC bridge, and execute system commands or steal login credentials.

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://app.bilibili.com/
https://github.com/LeoWSY-hashblue/bilibili-desktop-tls-disabled-rce
https://github.com/LeoWSY-hashblue/bilibili-desktop-tls-disabled-rce/blob/main/advisory.md
https://www.vulncheck.com/advisories/bilibili-desktop-through-1.18.0-remote-code-execution-via-tls-verification-bypass

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Source: NIST National Vulnerability Database (record CVE-2026-86185), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.